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Full Discussion: Comparing multiple variables
Top Forums Shell Programming and Scripting Comparing multiple variables Post 302348305 by Bugenhagen on Friday 28th of August 2009 01:45:54 AM
Old 08-28-2009
Comparing multiple variables
Hi!

I've come up with a ksh-script that produces one or more lists of hosts.
At the and of the script, I would like to print only those hosts that exists in all the lists.

Ex.
HOSTS[1]="host1 host2 host3 host11"
HOSTS[2]="host1 host2 host4"
HOSTS[3]="host2 host11"
HOSTS[4]="host2 host5 host6 host7 host8"

This should generate a print-out of "host2" only.
How can I do this in a effective manner?

My current solution is not exact, so it would render a output of "host1 host2" as "host1" is part of string "host11".
($run contains the number of host-rows that are produced earlier)


for candidate in ${HOSTS[1]};do
HIT=true
for (( i=1;i<=$run;i++ ));do
if [ $(($i+1)) -le $run ];then
if ! [[ ${HOSTS[$i+1]} = *"$candidate"* ]];then
HIT=false
fi
fi
done
if [ x${HIT} = xtrue ];then
FINAL="$FINAL $candidate "
fi
done


Any ideas how to solve this?

//Br Bugenhagen
 

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LEARN ABOUT REDHAT

amoverview

AMOVERVIEW(8)						      System Manager's Manual						     AMOVERVIEW(8)

NAME

       amoverview - display file systems processed by Amanda over time

SYNOPSIS

       amoverview [[ -config ] config ] [ [-hostwidth width] ] [ [-diskwidth width] ] [ -verbose ]

DESCRIPTION

       Amoverview displays a chart showing hosts and file systems processed by Amanda along with the backup level performed each day.

       See the amanda(8) man page for more details about Amanda.

OPTIONS

       [-config config]
	      Use configuration config instead of DailySet1.

       [-hostwidth width]
	      Set host field column width to width characters instead of eight.

       [-diskwidth width]
	      Set disk field column width to width characters instead of 20.

       -verbose
	      Amoverview can take a long while on large systems.  This option reports intermediate steps while it is working.

EXAMPLE

       This  shows  the /home file system on host2 was backed up at level 3 on the 8th, 9th and 10th of December, had a full backup on the 11th, a
       level 1 on the 12th and a level 2 on the 13th.

	      # amoverview
				       date 12 12 12 12 12 12
	      host     disk		    08 09 10 11 12 13

	      host1    /		     0	1  1  1  1  1
	      host1    /var		     0	1  1  1  1  1
	      host2    /		     1	1  1  1  1  0
	      host2    /home		     3	3  3  0  1  2
	      host2    /opt		     1	1  1  1  1  1
	      host2    /var		     1	1  0  1  1  1

SEE ALSO

       amadmin(8), amanda(8)

																     AMOVERVIEW(8)
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